Exploring The Universe
... • Quasars may be infant galaxies. • In 1960, a faint object was matched with a strong radio signal. This object was called a quasar. • quasar quasi-stellar radio sources; very luminous objects that produce energy at a high rate and that are thought to be the most distant objects in the universe • Ea ...
... • Quasars may be infant galaxies. • In 1960, a faint object was matched with a strong radio signal. This object was called a quasar. • quasar quasi-stellar radio sources; very luminous objects that produce energy at a high rate and that are thought to be the most distant objects in the universe • Ea ...
Nebula Beginnings - University of Dayton
... titanic supernova explosions scatter this material back into space where it is used to create new generations of stars. This is the mechanism by which the gas and dust that formed our solar system became enriched with the elements that sustain life on this planet. Hubble spectroscopic observations w ...
... titanic supernova explosions scatter this material back into space where it is used to create new generations of stars. This is the mechanism by which the gas and dust that formed our solar system became enriched with the elements that sustain life on this planet. Hubble spectroscopic observations w ...
Weighing a Galaxy—11 Nov Ast 207 F2005 Nov-09 • Schedule
... since period of sun’s motion around Milky Way is 200 Myr. Mass = R3 / T2 = R (R/ T)2 Mass = R v2 (w/o constants) Mass = 233 R v2 Msun (v in km/s and R in pc) • Doppler effect for measuring speed. ...
... since period of sun’s motion around Milky Way is 200 Myr. Mass = R3 / T2 = R (R/ T)2 Mass = R v2 (w/o constants) Mass = 233 R v2 Msun (v in km/s and R in pc) • Doppler effect for measuring speed. ...
Scales of the Universe
... What would you expect to see if you looked at the Sun’s photosphere now? • The photosphere: the region where the black body radiation that we see is made • Thin gas: 3,400 times thinner than air • It is the transition region from a black-body emitting plasma to a transparent gas • Its upper layer ...
... What would you expect to see if you looked at the Sun’s photosphere now? • The photosphere: the region where the black body radiation that we see is made • Thin gas: 3,400 times thinner than air • It is the transition region from a black-body emitting plasma to a transparent gas • Its upper layer ...
Jeopardy - Garrity Science
... Every element heavier than helium that makes up your body was made ...
... Every element heavier than helium that makes up your body was made ...
PPV_hd169142
... Time. Apache Point Observatory is operated by the Astrophysical Research Consortium. ...
... Time. Apache Point Observatory is operated by the Astrophysical Research Consortium. ...
THE CONSTELLATION OCTANS, THE OCTANT
... Nu Octantis is the brightest star in the constellation. It has an apparent visual magnitude of 3.76 and is approximately 69 light years distant from the solar system. The star is an orange giant with the stellar classification K1III. It is one of the least luminous giant stars known, with a mass 1.4 ...
... Nu Octantis is the brightest star in the constellation. It has an apparent visual magnitude of 3.76 and is approximately 69 light years distant from the solar system. The star is an orange giant with the stellar classification K1III. It is one of the least luminous giant stars known, with a mass 1.4 ...
Lectures 14 & 15 powerpoint (neutron stars & black holes)
... and a giant star about to explode would envelop any planets within an AU or two…) ...
... and a giant star about to explode would envelop any planets within an AU or two…) ...
Trainer`s Notes
... The stars are named by use of the Greek alphabet – alpha, beta, gamma, delta and so on. The brightest star in each constellation is named alpha followed by the constellation name. Then the next brightest star is called beta followed by the constellation name. For example: Sirius is the common name f ...
... The stars are named by use of the Greek alphabet – alpha, beta, gamma, delta and so on. The brightest star in each constellation is named alpha followed by the constellation name. Then the next brightest star is called beta followed by the constellation name. For example: Sirius is the common name f ...
01 Orders of Magnitude and Units
... Q2. There are about 1x1028 molecules of air in the lab. So by how many orders of magnitude are there more molecules in the Sun than in the lab? A. 1056 / 1028 = 1028 so 28 orders of magnitude more molecules in the Sun. Q3. Determine the ratio of the diameter of a hydrogen atom to the diameter of a ...
... Q2. There are about 1x1028 molecules of air in the lab. So by how many orders of magnitude are there more molecules in the Sun than in the lab? A. 1056 / 1028 = 1028 so 28 orders of magnitude more molecules in the Sun. Q3. Determine the ratio of the diameter of a hydrogen atom to the diameter of a ...
The Solar System Interplanetary Matter and the Birth of the Planets
... condense at the low temperatures Why are they gaseous? – gas and ices are present at that distance Why are they bigger? - accretion onto the planet starts sooner because they are further from the Sun, less affected by solar wind . The collapse of the giant planets produces a core of about 10 Earth’s ...
... condense at the low temperatures Why are they gaseous? – gas and ices are present at that distance Why are they bigger? - accretion onto the planet starts sooner because they are further from the Sun, less affected by solar wind . The collapse of the giant planets produces a core of about 10 Earth’s ...
The Sun
... elements. 3. Nuclear fission of hydrogen. 4. Nuclear fission of heavier elements into hydrogen. 5. Nuclear fission of heavier elements into elements heavier than hydrogen. ...
... elements. 3. Nuclear fission of hydrogen. 4. Nuclear fission of heavier elements into hydrogen. 5. Nuclear fission of heavier elements into elements heavier than hydrogen. ...
PowerPoint Presentation - Super Massive Black Holes
... as the object gets more massive, the force should get bigger too. But the force is also inversely proportional to the cube of the object's radius. As the hole gets more massive, its size increases, but because of the cube factor, the force decreases much faster than any possible mass increase can ac ...
... as the object gets more massive, the force should get bigger too. But the force is also inversely proportional to the cube of the object's radius. As the hole gets more massive, its size increases, but because of the cube factor, the force decreases much faster than any possible mass increase can ac ...
Question Title
... Solution Comments Answer: B Justification: If the Sun was a first generation star, then the only elements present in our solar system would be hydrogen and helium. We know that the Sun is not a first generation star because we interact with heavier elements – such as carbon, nitrogen, oxygen, and s ...
... Solution Comments Answer: B Justification: If the Sun was a first generation star, then the only elements present in our solar system would be hydrogen and helium. We know that the Sun is not a first generation star because we interact with heavier elements – such as carbon, nitrogen, oxygen, and s ...
IK Pegasi
IK Pegasi (or HR 8210) is a binary star system in the constellation Pegasus. It is just luminous enough to be seen with the unaided eye, at a distance of about 150 light years from the Solar System.The primary (IK Pegasi A) is an A-type main-sequence star that displays minor pulsations in luminosity. It is categorized as a Delta Scuti variable star and it has a periodic cycle of luminosity variation that repeats itself about 22.9 times per day. Its companion (IK Pegasi B) is a massive white dwarf—a star that has evolved past the main sequence and is no longer generating energy through nuclear fusion. They orbit each other every 21.7 days with an average separation of about 31 million kilometres, or 19 million miles, or 0.21 astronomical units (AU). This is smaller than the orbit of Mercury around the Sun.IK Pegasi B is the nearest known supernova progenitor candidate. When the primary begins to evolve into a red giant, it is expected to grow to a radius where the white dwarf can accrete matter from the expanded gaseous envelope. When the white dwarf approaches the Chandrasekhar limit of 1.44 solar masses (M☉), it may explode as a Type Ia supernova.